swap two variables without using third variable in c language | CTechnotips

Swapping in c without temporary variable

Swap 2 numbers without using third variable in c

How to swap two numbers in c without using third variable

#include<stdio.h>

int main(){

   int a=5,b=10;

    //process one

    a=b+a;

    b=a-b;

    a=a-b;

    printf("a= %d  b=  %d",a,b);

    //process two

    a=5;b=10;

    a=a+b-(b=a);

    printf("\na= %d  b=  %d",a,b);

    //process three

    a=5;b=10;

    a=a^b;

    b=a^b;

    a=b^a;

    printf("\na= %d  b=  %d",a,b);

    //process four

    a=5;b=10;

    a=b-~a-1;

    b=a+~b+1;

    a=a+~b+1;

    printf("\na= %d  b=  %d",a,b);

    //process five

    a=5,b=10;

    a=b+a,b=a-b,a=a-b;

    printf("\na= %d  b=  %d",a,b);

    return 0;

}